And now that we've had a dose of FACT, here's an opinion. I think the rolling resistance of my '08 HiHy is lower (Toyo's) than my '07 Camry Hybrid (Michelin MXV4 S8's). But that may more be that there's more mass moving than anything to do with the tires.

"When you get to the fork in the road, take it." --Yogi Berra